Changing plug-in file permissions (macOS)
- 
                                                
Start the Terminal application, and use the
cdcommand to set your path as needed. - 
                                                
Enter the following at the command line:
chmod g+rx <file-path>
or
chmod g+wrx <file-path>
 
The g+rx is necessary because plug-ins and system scripts must have the group read and executable bits enabled. Use the g+wrx form to permit write permission as well. Some plug-ins or scripts that use preferences or folders of additional files may require write permission to those files or folders.